That's called inbreeding. I would definately have advised against it but then I guess she didn't ask for my advise! It can be really dangerous because you amplify good and bad qualities. If they have anything detrimental in their lines, which I suppose everyone does to some degree, it will have a good chance of cropping up now. It means she could definately have some unhealthy pups. Sounds like she doesn't care though, which is unfortunate.....
